Because the blood is specific for each person; it is necessary for identification.
Blood carries DNA in the white cells.
Ringer's solution is not directly compatible with blood for transfusion purposes. It is an isotonic electrolyte solution used for rehydration and fluid replacement, but it lacks the necessary components, such as proteins and specific blood cells, found in blood. While Ringer's solution can be used alongside blood products for fluid resuscitation, it should not be mixed with blood or used as a substitute for blood transfusions.
Eyewitnesses to a crime are not necessary to get a conviction.
INTENT is not necessary to solve a crime.... intent is necessary to prove a crime. A crime consists of TWO elements and two elements only: A criminal act accompanied by a criminal intent. If you have those two elements together - you have a crime.
By its solution. A crime is only "open" unless it cannot be proven who it was that committed it.
is blood a solution, suspension, or colloid
Actus Reus : act or omission necessary to prove a crime
It is necessary to join intent with an act because there may be no intention to commit a crime and your responsibly will be lessened. If there is intent, but no act, there is no crime.
It depends on the crime
Vitamin K is the essential vitamin necessary for blood clotting.
Blood can be analyzed at a crime scene to determine the blood type of the individual, which can help exclude or include suspects. DNA analysis from blood samples can help establish a match between the blood found at the crime scene and a suspect. Blood spatter patterns can also provide clues about the events that took place during a crime.
The concentration of solution is same to blood it is isotonicity of blood.
Whose blood is it? How did the blood get there? Is the blood evidence of a crime?